'''Jean Léopold Nicolas Frédéric, Baron Cuvier''' (; 23 August 1769 – 13 May 1832), known as '''Georges Cuvier''', was a French natural history|naturalist
, sometimes referred to as the "father of paleontology". Cuvier was a major figure in natural sciences research in the early 19th century and was instrumental in establishing the fields of comparative anatomy
through his work in comparing living animals with fossils.
Cuvier's work is considered the foundation of vertebrate paleontology
, and he expanded Linnaean taxonomy
by grouping classes into phylum|phyla
and incorporating both fossils and living species into the classification. Cuvier is also known for establishing extinction
as a fact—at the time, extinction was considered by many of Cuvier's contemporaries to be merely controversial speculation. In his ''Essay on the Theory of the Earth'' (1813) Cuvier was interpreted to...